Sooo on top of everything going on with my water parameters I found out two things. One my return pump is rusted around the seems and indeed and also my tank was leaking from one of the drains. The question I ha e and maybe someone knows from putting their tank together is. There is a rubber seal that goes in between the glass tank and the ring that tightens the connection. But I am not sure if the rubber goes thru the inside of the tank or on the bottom.







